Table 3.
Hazard ratios and 95% confidence intervals for disability incidence in the crude and adjusted models for 24 months per the cut-off points (12/13 points) of the NCGG-ADL scale (N = 2708).
| Crude Model | Adjusted Model | ||||||
|---|---|---|---|---|---|---|---|
| HR | 95% CI | p | HR | 95% CI | p | ||
| NCGG-ADL scale | |||||||
| 13 points | Reference | Reference | |||||
| ≤12 points | 1.82 | 1.39–2.38 | <0.001 | 1.58 | 1.19–2.09 | 0.002 | |
| Age | (years) | 1.14 | 1.11–1.18 | <0.001 | |||
| Female | (yes) | 1.42 | 1.10–1.85 | 0.008 | |||
| Body mass index | (kg/m2) | 0.97 | 0.93–1.01 | 0.150 | |||
| Education | (years) | 1.01 | 0.97–1.06 | 0.573 | |||
| Hypertension | (yes) | 1.06 | 0.83–1.35 | 0.667 | |||
| Diabetes mellitus | (yes) | 1.24 | 0.90–1.71 | 0.197 | |||
| Heart disease | (yes) | 1.29 | 0.99–1.69 | 0.061 | |||
| Parkinson’s disease | (yes) | 1.73 | 0.43–7.01 | 0.442 | |||
| Stroke | (yes) | 1.17 | 0.78–1.78 | 0.447 | |||
| Depression | (yes) | 0.96 | 0.53–1.77 | 0.907 | |||
| Living alone | (n, %) | 0.82 | 0.61–1.11 | 0.201 | |||
| Fall history | (n, %) | 1.26 | 0.97–1.64 | 0.081 | |||
| Mild cognitive impairment | (n, %) | 1.54 | 1.12–2.10 | 0.007 | |||
HR, hazard ratio; CI, confidence interval; IADL, instrumental activities of daily living; NCGG-ADL, the National Center for Geriatrics and Gerontology Activities of Daily Living scale.